| Summary: | 碩士 === 國立嘉義大學 === 農學研究所 === 97 === The objectives of this study were conducted to evaluate the effects of applying with different concentration of 0%, 10% and 25 % added eggshell organic liquid fertilizer on the growth and nitrate concentration of four leafy vegetables,‘Green giant’Edible rape,‘Xia-Wang’Green stem pai-tsai, ‘Hoye’Pai-tsai and‘Heiye’Pai-tsai, were used as experimental materials and planted both in pot and field conditions. Results indicated that applying 25% added eggshell organic liquid fertilizer had significantly increased plant height, stem diameter, shoot and root fresh weight as compared with control of both‘Xia-Wang’Green stem pai-tsai and‘Hoye’Pai-tsai. Shading before 24hrs harvest showed also affecting the of nitrate concentration. Treatment with 25% eggshell was found a high level of 306.7 mg L-1 nitrate concentration on ‘Green giant’ Edible rape and showed significant difference with no shading treatment. In the field, 0%, 10% and 25% of added organic eggshell liquid fertilizer showed significantly increased stem diameter, and shoot fresh weight of‘Green giant’Edible rape,‘Xia-Wang’Green stem pai-tsai,‘Hoye’Pai-tsai and‘Heiye’Pai-tsai. Application with 10% and 25% of added eggshell organic liquid fertilizer showed apparently decreased‘Xia-Wang’Green stem pai-tsai,‘Hoye’Pai-tsai and ‘Heiye’Pai-tsai leaf nitrate concentration and had significant difference with control plot. In conclusion, the application of 10% or 25% added eggshell organic liquid fertilizer showed not only dramatically decreased on of‘Xia-Wang’Green stem pai-tsai,‘Hoye’Pai-tsai and‘Heiye’Pai-tsai leaf nitrate concentrations but also increased it growth and yield in the field. It is worthy to make a further study for production high yield and high quality commercial organic vegetables.
|
|---|
